Energy Update

UPDATE 1-Enel CEO says China's CNNC likely to bid for Slovenske stake

MILAN, June 12 (Reuters) - China National Nuclear Corporation (CNNC) is likely to bid for the stake in Slovakian power generator Slovenske Elektrarne held by Italian utility Enel, Enel's CEO said on Friday.

Central bank reserves policy pushes rouble into line with exporters' forecasts

MOSCOW, June 12 (Reuters) - The Russian central bank's plan to buy foreign currency to build up its reserves has moved the rouble back towards levels assumed by the country's largest exporters after a spike in its value earlier this year.

Rich nations in stalemate over coal subsidy phase-out

* No deal would be an embarrassment ahead of U.N.

UPDATE 1-BP says has completed planned maintenance at West Azeri platform

BAKU, June 12 (Reuters) - British oil company BP has completed maintenance and resumed production at its West Azeri platform in the Caspian Sea, Tamam Bayatly, a spokeswoman for BP Azerbaijan, said on Friday.

East Ukraine shelling cuts off gas supplies to Mariupol

KIEV, June 12 (Reuters) - Fighting in east Ukraine has damaged a gas pipeline, leaving three towns, including the port city of Mariupol, without gas supplies for up to two days, gas transport monopoly Ukrtransgaz said on Friday.

South Korea's GS Caltex makes rare large purchase of African crude

SINGAPORE, June 12 (Reuters) - South Korea's GS Caltex Corp is set to receive a shipment of 2 million barrels of West African crude, dwarfing the country's usual purchases from the region as it looks to diversify supply away from the Middle East.